怀孕期间受二手烟影响会增加低出生体重的几率。

Exposure to secondhand smoke during pregnancy increases the risk of low birth weight.

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过多的能量摄入不论来源(包括低脂食品)都会导致体重增加或是抑制体重降低效果。

Too many calories from any source, including low-fat products, can add pounds or prevent weight loss.

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先前的研究报告说，低出生体重儿童似乎有增加的风险，内部，外部和应注意的问题。

Previous studies have reported that low-birth-weight children appear to have an increased risk of internalizing, externalizing and attention problems.

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